Re: runtime.exec() How to copy all files ?

From:

Nigel Wade <nmw@ion.le.ac.uk>

Newsgroups:

comp.lang.java.programmer

Date:

Thu, 09 Aug 2007 15:45:42 +0100

Message-ID:

<f9f9am$gb5$1@south.jnrs.ja.net>

k4 wrote:

Witam

My class:

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

public class test {

    public static void main( String [] args ) {
try{
     Runtime runtime = Runtime . getRuntime();

     String cmd ="/bin/cp /home/k/java/* /var/www/k/";
     System.out.println(cmd);
       Process process = runtime.exec(cmd);
       InputStream is = process.getInputStream();
       InputStreamReader isr = new InputStreamReader(is);
       BufferedReader bfr = new BufferedReader(isr);
       String line;

       while ( ( line = bfr . readLine() ) != null ) {
         System.out.println(line);
     }
}catch(Exception e){
}

   }
}

If I use "*" to copy all files, then command doesn't work why? If I try
copy single file then everything is ok.
String cmd ="/bin/cp /home/k/java/single.txt /var/www/k/";

Because "*" is only special to the shell, and you are not invoking a shell. In
your case the executable /bin/cp would try to copy a file called "*", and there
isn't one.

How to copy all files ? :/a

Invoke a shell:

String[] cmd ={"/bin/sh", "-c", "/bin/cp /home/k/java/* /var/www/k/"};

--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555